CMF / CRF Details
CMF ID: 11128
Road diet (Convert 4-lane undivided road to 2-lanes plus turning lane)
Description:
Prior Condition: four-lane roadway
Category: Roadway
Study: Development of Road Diet Segment and Intersection Crash Modification Factors, Linda Lim and Michael D. Fontaine, 2022
Star Quality Rating: | [View score details] |
Rating Points Total: | 110 |
Crash Modification Factor (CMF) | |
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Value: | 0.62 |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 0.13 |
Crash Reduction Factor (CRF) | |
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Value: | 38 (This value indicates a decrease in crashes) |
Adjusted Standard Error: | |
Unadjusted Standard Error: | 13 |
Applicability | |
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Crash Type: | All |
Crash Severity: | All |
Roadway Types: | Minor Arterial |
Street Type: | Two-Way |
Minimum Number of Lanes: | 4 |
Maximum Number of Lanes: | 4 |
Number of Lanes Direction: | Both Directions |
Number of Lanes Comment: | |
Crash Weather: | Not specified |
Road Division Type: | All |
Minimum Speed Limit: | |
Maximum Speed Limit: | |
Speed Unit: | |
Speed Limit Comment: | |
Area Type: | Urban and suburban |
Traffic Volume: | Minimum of 2600 to Maximum of 17000 Annual Average Daily Traffic (AADT) |
Average Traffic Volume: | |
Time of Day: | Not specified |
If countermeasure is intersection-based | |
Intersection Type: | |
Intersection Geometry: | |
Traffic Control: | |
Major Road Traffic Volume: | |
Minor Road Traffic Volume: | |
Average Major Road Volume : | |
Average Minor Road Volume : |
Development Details | |
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Date Range of Data Used: | |
Municipality: | |
State: | VA |
Country: | |
Type of Methodology Used: |